I have gotten that a couple of times when my files are deep in some folder structure. Just do as it says and move it up a couple of levels or shorten the filename and it'll work.

If you REALLY haven't changed ANYTHING it's strange though, perhaps if you have your files in the MCS folder they have added some characters to their folder names but then you have probably moved your original files to THAT folder.

Anyway, simply shorten it down and you'll be fine.

/Henrik.